So, I was told about one of those services that basically have a script written that looks for openings and then texts you when openings happen. It sends you a link to snag that opening. I must have gotten 20-25 notifications in the two months leading up to our trip and still never actually got one of the openings. By the time I clicked on the link and got to the reservation page, it was gone. Heck, once I was on my computer, had the page for reservations open, got a text and had searched for it within SECONDS, and it was gone.